I would say your best bet is just to email the supplier to find out. They could probably measure it up for you, or might have had people ask them questions about that before :)
Cheers,
Clint
Being from Aussie, I thought I would weigh in on this discussion. Many kit brewers here use and started using that little 7g packet to make kit and kilo beers.
I've personally never had any problems and have never seen anyone complain about it on aussiehomebrewer.com. What's probably...